A5058330760- Corrosion Behavior and Inhibition
- Cultural Heritage Materials Analysis
- Building materials and conservation
- Conservation Techniques and Studies
- Hydrogen embrittlement and corrosion behaviors in metals
- Advanced Photocatalysis Techniques
- Gold and Silver Nanoparticles Synthesis and Applications
- Electrocatalysts for Energy Conversion
- Chemical Synthesis and Characterization
- Conducting polymers and applications
- Plasma Applications and Diagnostics
- Electrochemical Analysis and Applications
- Gas Sensing Nanomaterials and Sensors
- TiO2 Photocatalysis and Solar Cells
- Metal and Thin Film Mechanics
- Mineralogy and Gemology Studies
- Copper-based nanomaterials and applications
- Catalytic Processes in Materials Science
- Advanced battery technologies research
- Surface Modification and Superhydrophobicity
- Diamond and Carbon-based Materials Research
- Electrodeposition and Electroless Coatings
- Silicon Nanostructures and Photoluminescence
- Concrete Corrosion and Durability
- CO2 Reduction Techniques and Catalysts
Vrije Universiteit Brussel
2016-2025
Universitair Ziekenhuis Brussel
2024
Vrije Universiteit Amsterdam
2010-2012
Agfa-Gevaert (Belgium)
2006
University of Antwerp
2006
Non-noble metals (Fe, Co or Cu) supported on N-doped carbons were investigated for the first time as electrocatalysts reduction of nitrobenzene to aniline in a half-cell setup. The prepared by pyrolysis composites activated carbon (AC) and polyaniline (PANI) with incorporated metal sites. electrocatalyst performance was strongly influenced nature synthesis method. For latter, different optimum identified each metal. Cu-based synthesised low amount PANI Cu relative AC, best based its onset...
Schematically deciphering the electrochemical mechanism of electrochromic NiO<sub>x</sub> thin film based on Li<sup>+</sup>-ion electrolytes.
A new, simple chemical route was developed for the synthesis of pure nanocalcite crystals by controlling reaction an aqueous solution CaO and CO2 gas. Results revealed formation well-defined with controlled crystallite particle size, without additives or organic solvents. The size can be controlled, smaller sizes are obtained decreasing concentration increasing flow rate. decrease below a certain threshold provides crystal signature characteristics that clearly observed in XRD patterns, TEM...
This work presents a simple, fast (20 min treatment), inexpensive, and highly efficient method for synthesizing nitrogen-doped titanium dioxide (N-TiO2) as an enhanced visible light photocatalyst. In this study, N-TiO2 coatings were fabricated by atmospheric pressure dielectric barrier discharge (DBD) at room temperature. The composition the chemical bonds of TiO2 characterized X-ray photoelectron spectroscopy (XPS) time-of-flight secondary ion mass (ToF-SIMS). results indicate that nitrogen...
Colloidal Cu–Ag nanocrystals measuring less than 10 nm across are promising candidates for integration in hybrid CO2 reduction reaction (CO2RR) interfaces, especially the context of tandem catalysis and selective multicarbon (C2–C3) product formation. In this work, we vary synthetic-ligand/copper molar ratio from 0.1 to 1.0 silver/copper atomic 0 0.7 study variations nanocrystals' size distribution, morphology reactivity at rates ≥100 mA cm–2 a gas-fed recycle electrolyzer operating under...
The emerging fields of wearables and the Internet Things introduce need for electronics power sources with unconventional form factors: large area, customizable shape, flexibility. Thermoelectric (TE) generators can those systems by converting abundant waste heat into electricity, whereas versatility additive manufacturing suits heterogeneous factors. Here, high-performing flexible TEs is proposed. Maskless large-area patterning Bi
The co-evolution of life and minerals has profoundly shaped Earth's biological geological history, with skeletal biomineralization emerging in eukaryotes over 800 Ma. Chitin, a key organic scaffold modern biomineralization, was previously identified fossils as old the Cambrian (~505 Ma). Here, we extend this record by demonstrating presence fossilized chitin 1-Ga acritarch-like from Lakhanda Lagerst&#228;tte, Siberia. These large spherical (100&#8211;200 &#181;m) align...
The corrosion inhibiting effect of lithium carbonate has been studied over the pH range relevant for atmospheric conditions at polymer/metal interface. It is demonstrated that offers optimum protection under moderately alkaline attributed to formation a protective layer identified as aluminum-lithium layered double hydroxide. proposed an active-to-passive transition occurs in presence where anodic dissolution aluminum matrix important step prior layer. After prolonged exposure, uniformly...
Abstract Raman spectroscopy has been used to identify iron‐containing glasses. This nondestructive technique offers a fast method obtain qualitative information about the presence of iron oxides in glass. The effect content glass samples is reflected on topology spectra: A strong link between ratio Q 2 / 3 vibration units silica tetrahedral structure seen. If matrix effects are taken into account, also (semi)quantitative results can be obtained from calibration lines. linear based normalized...
n-Si/SiO2(Cu) structures with different morphologies of copper deposits are produced using the template synthesis method. Deposition Cu nanostructures and their structural features is thoroughly studied, mechanisms for formation compact dendrite-like in pores SiO2 on n-type single-crystal silicon substrate established. Spatially separated dendrites obtained used to investigate efficiency Raman scattering enhancement aqueous solution Rhodamine 6G dye.
A green electrochemical alternative: doped ordered mesoporous carbons are active and selective electrocatalysts for the reduction of nitrobenzene to aniline.
Protein adsorption and its conformational arrangements on the surface of metallic biomaterials directly influence biocompatibility degradation process during implant lifetime. However, presence various species such as phosphates, calcium hydrogen peroxide (H2O2) in human body not only control electrochemical interactions biomaterial but could also modify protein impact metal degradation. To this aim bovine serum albumin (BSA) adsorption, morphology, potential corrosion resistance a Ti6Al4V...
Abstract Sulfur particles coated by activation of metal alkoxide precursors, aluminum–sulfur (Alu–S) and vanadium–sulfur (Van–S), were produced dielectric barrier discharge (DBD) plasma technology under low temperature ambient pressure conditions. We report a safe, solvent‐free, low‐cost, low‐energy consumption coating process that is compatible for sustainable up‐scaling. NMR, XPS, SEM, XRD characterization methods used to determine the chemical characteristics superior behavior Li–S cells...
To date, studies assessing the safety profile of 3D printing materials for application in cardiac ablation are sparse. Our aim is to evaluate and feasibility two biocompatible materials, investigating their potential use intra-procedural guides navigate surgical arrhythmia ablation. Herein, we printed various prototypes varying thicknesses (0.8 mm–3 mm) using a resin (MED625FLX) thermoplastic polyurethane elastomer (TPU95A). Geometrical testing was performed assess material properties pre-...
The main purpose of this publication is to define sensing parameters by means optical spectroscopy study and characterize ancient glass. Because during different times flux agents were used, a chemical individuation these elements provides first dating classification. Normally, X‐ray‐based methods are applied kind investigation. On the basis Ligand‐field theory , absorption band positions transition metal ion undergo change when placed in environments. A total 25 cobalt coloured Roman,...
In the 1st–2nd century AD, glass was made black using strongly reducing conditions. Later, appearance obtained adding an excess of colourant rather than controlling furnace atmosphere.
Plasma density influences the chemistry and morphology of deposited plasma polymers even under same energy to monomer ratio.